| .300 Remington Short Action Ultra Magnum | ||
|---|---|---|
| Type | Rifle | |
| Place of origin | USA | |
| Production history | ||
| Designer | Remington | |
| Manufacturer | Remington | |
| Produced | 2001 | |
| Specifications | ||
| Parent case | .300 Remington Ultra Magnum | |
| Bullet diameter | .308 in (7.8 mm) | |
| Neck diameter | .344 in (8.7 mm) | |
| Shoulder diameter | .534 in (13.6 mm) | |
| Base diameter | .550 in (14.0 mm) | |
| Rim diameter | .534 in (13.6 mm) | |
| Case length | 2.015 in (51.2 mm) | |
| Overall length | 2.825 in (71.8 mm) | |
| Rifling twist | 1-10" | |
| Primer type | Large rifle magnum | |
| Ballistic performance | ||
| Bullet weight/type | Velocity | Energy |
| 150 gr (9.7 g) SP | 3,253 ft/s (992 m/s) | 3,525 ft·lbf (4,779 J) |
| 165 gr (10.7 g) SPBT | 3,126 ft/s (953 m/s) | 3,581 ft·lbf (4,855 J) |
| 180 gr (12 g) HPBT | 2,954 ft/s (900 m/s) | 3,489 ft·lbf (4,730 J) |
| 200 gr (13 g) SP | 2,790 ft/s (850 m/s) | 3,458 ft·lbf (4,688 J) |
| Test barrel length: 24" Source(s): Reloading data at Accurate Powder |
||
.300 Remington Short Action Ultra Magnum (also known as 300 RSAUM, 300 RSUM or 300 Rem SAUM) is a .30 caliber short magnum cartridge that was put on the market shortly after Winchester released its 300 WSM round in 2001.[1]
Contents |
The 300 RSAUM's ballistics are similar to 300 Win Mag and 300 WSM. The difference in ballistics between the WSM and RSAUM are fairly minuscule.
| Cartridge | Bullet Weight | Muzzle velocity | Muzzle energy |
|---|---|---|---|
| .30-06 Springfield | 200 | 2569 | 2932 |
| .300 RSAUM | 200 | 2790 | 3458 |
| .300 WSM | 200 | 2822 | 3538 |
| .300 Win Mag | 200 | 2877 | 3677 |
| .300 H&H Magnum | 200 | 2913 | 3769 |
| .300 Wby Mag | 200 | 2987 | 3963 |
| .300 RUM | 200 | 3154 | 4419 |